Improvement in machines for polishing marble and wood



J. C. MATEER.

Improvement in Machine for Polishing Marble and Wood. N0.132,404.Patented Oct. 22,1872.

I. P iDrtI-umocRAIW/c 00M): fasanmvs's M00555) PATENT OFFICE. 1

JOHN C. MATEER, OF KANKAKEE, ILLINOIS. I

IMPROVEMENT IN MACHINES FOR POLISHING MARBLE AND WOOD.

Specification forming part of Letters Patent No. 132,404, dated October221872.

To all whom it may concern:

' Be it known that 1, JOHN 0.1VIATEER, of Kankakee, in the county ofKankakee and State of Illinois, have invented a new and usefulImprovement in Machine for Polishing Marble, Wood, &c., of which thefollowing is a specification:

In the accompanying drawing, Figure 1 is a side view of my improvedmachine, partly in section, to show the construction, and Fig. 2 is atop view of the same.

Similar letters of reference indicate corresponding parts. I

My invention has for its object to furnish an improved machine forpolishing marble and wood, and which may also be used for operating abit or drill for boring purposes, doing its work well and thoroughly,and adjusting itself to the surface to be operated upon; and-it consistsin the construction and combination of various parts of the machine, ashereinafter more fully described.

A is a vertical shaft, which revolves in brackets B or other bearingsattached to posts 0 or other suitable supports. Upon the upper part ofthe shaft A is placed a fast pulley, D, and a loose pulley, E, toreceive the drivingbelt F, which also passes around the drivingpulley Gattached to the shaft H, which revolves in bearings attached to theposts I or other suitable supports, and which is driven by anyconvenient power. J is a frame, to the rear ends of the top and bottombars of which are attached hearings in which the shaft A revolves, sothat the said frame J may be supported by the said shaft A. The frame Jis supported in position by a collar, K, placed upon the lower part ofthe shaft A, and adjustably secured in position by a set-screw. To theshaft A, between the bearings of the frame J, is attached a long pulley,L, around which passes a band, M, which also passes around a longpulley, N, that runs loosely upon the shaft 0, which is secured to theforward ends of the top and bottom bars of the frame J by setscrews. Pis a frame, to the rear ends of the top and bottom bars of which areattached bearings which work upon the shaft 0, between the forward endsof the top and bottom bars of the frame P. Around the long pulley N alsopasses a band, Q, which passes around a long pulley, R, keyed orotherwise secured to the shaft S, which revolves in bearings attached tothe forward ends of the top and bottom bars of the frame P. Upon thelower end of the shaft S, which projects belowthe bottom bar of theframe P, is screwed or otherwise detachably secured a head or plate, T,to which is secured the rubber U for polishing marble, or the sand-paperholder for polishing wood, or the tool-holder for boring or drilling.The rubber U is secured to the head or plate T by three or more screwsor bolts, V, which have thick rubber washers W placed upon their upperends, upon the upper side of the plate T. A rubber block, X, is alsointerposed between the centers of the plate T and holder or rubber U, asshown in Fig. 1. This construction allows the rubber to adjust itself tothe surface to be operated upon. Upon the shaft S, above the bearing inthe forward end of the top bar of the frame P, is placed a coiledspring, Y, the lower end of which rests against the said bearing, andits upper end rests against a collar or washer placed upon the upperpart of the said shaft. The spring Y allows the rubber to rise should itencounter an obstruction or uneven portion of the surface being operatedupon. Z is a rod, the rear end of which is attached to the upper end ofthe shaft 0. The forward part of the rod Z has an eye formed through itto receive the upper end of the shaft S and the sleeve A, to whichsleeve it is secured by setscrews B. The sleeve A is secured fromlongitudinal movement upon the shaft S by collars or washers placed uponthe said shaft, above and below the said sleeve. The forward end of therod Z is bent into crank form, as shown in Fig. 1, to bring it intoconvenient position to be grasped by the operator to guide the rubberover the surface of the wood or stone to be operated upon. The rod Zalso enables the operator to press the rubber down upon the work withany desired force. This construction enables the swinging frames to beconveniently raised and lowered to adjust them to the thickness of thematerial to be operated upon. B is a shipper for moving the belt F backand forth upon the fast and loose pulleys D E, and securing it in placewhen adjusted. The shipper B is operated by a bar, 0, which extendsdownalong the post 0 into such a position that it may be con- 9 mamaveniently reached and operated, and which is secured in place whenadjusted by a pin, 1), or other suitable means.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- 1. The arrangement of the driving-belt F, fast andloose pulleys D E, shaft A, frame J, adjustable collar K, pulley L, bandH, pulley N, shaft 0, frame P, band Q, pulley R, and Working shaft S,with respect to each other, substantially as herein shown and described,and for the purpose set forth. 7

2. The combination of the plate or head T,

rubber or holder U, bolts V, three or more, rubber washers W, and rubberblock X, with each other and with the lower end of the working shaft S,substantially as herein shown and described, and for the purpose setforth 3. The combination of the rod Z and sleeve A with the shafts O Sand swinging frames J P, substantially as herein shown and described,and for the purpose set forth.

JOHN C. MATEER.

Witnesses:

EMMoNs B. COBB, REUBEN 0. SooVrLL.

